| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "src/tint/lang/spirv/writer/ast_printer/helper_test.h" |
| #include "src/tint/lang/spirv/writer/common/spv_dump_test.h" |
| |
| namespace tint::spirv::writer { |
| namespace { |
| |
| using namespace tint::core::fluent_types; // NOLINT |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| using SpirvASTPrinterTest = TestHelper; |
| |
| TEST_F(SpirvASTPrinterTest, Return) { |
| auto* ret = Return(); |
| WrapInFunction(ret); |
| |
| Builder& b = Build(); |
| |
| b.PushFunctionForTesting(); |
| EXPECT_TRUE(b.GenerateReturnStatement(ret)); |
| ASSERT_FALSE(b.has_error()) << b.Diagnostics(); |
| |
| EXPECT_EQ(DumpInstructions(b.CurrentFunction().instructions()), R"(OpReturn |
| )"); |
| } |
| |
| TEST_F(SpirvASTPrinterTest, Return_WithValue) { |
| auto* val = Call<vec3<f32>>(1_f, 1_f, 3_f); |
| |
| auto* ret = Return(val); |
| Func("test", tint::Empty, ty.vec3<f32>(), Vector{ret}, tint::Empty); |
| |
| Builder& b = Build(); |
| |
| b.PushFunctionForTesting(); |
| EXPECT_TRUE(b.GenerateReturnStatement(ret)); |
| ASSERT_FALSE(b.has_error()) << b.Diagnostics(); |
| |
| EXPECT_EQ(DumpInstructions(b.Module().Types()), R"(%2 = OpTypeFloat 32 |
| %1 = OpTypeVector %2 3 |
| %3 = OpConstant %2 1 |
| %4 = OpConstant %2 3 |
| %5 = OpConstantComposite %1 %3 %3 %4 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.CurrentFunction().instructions()), |
| R"(OpReturnValue %5 |
| )"); |
| } |
| |
| TEST_F(SpirvASTPrinterTest, Return_WithValue_GeneratesLoad) { |
| auto* var = Var("param", ty.f32()); |
| |
| auto* ret = Return(var); |
| Func("test", tint::Empty, ty.f32(), Vector{Decl(var), ret}, tint::Empty); |
| |
| Builder& b = Build(); |
| |
| b.PushFunctionForTesting(); |
| EXPECT_TRUE(b.GenerateFunctionVariable(var)) << b.Diagnostics(); |
| EXPECT_TRUE(b.GenerateReturnStatement(ret)) << b.Diagnostics(); |
| ASSERT_FALSE(b.has_error()) << b.Diagnostics(); |
| |
| EXPECT_EQ(DumpInstructions(b.Module().Types()), R"(%3 = OpTypeFloat 32 |
| %2 = OpTypePointer Function %3 |
| %4 = OpConstantNull %3 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.CurrentFunction().variables()), |
| R"(%1 = OpVariable %2 Function %4 |
| )"); |
| EXPECT_EQ(DumpInstructions(b.CurrentFunction().instructions()), |
| R"(%5 = OpLoad %3 %1 |
| OpReturnValue %5 |
| )"); |
| } |
| |
| } // namespace |
| } // namespace tint::spirv::writer |